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Ultra-low profile double-frequency single-layer small mobile antenna based on MGAA unit

A technology for moving antennas and profiles, applied in the directions of antennas, antenna parts, antenna supports/installation devices, etc., can solve the problem of increasing the dielectric substrate height of the dielectric substrate and the dielectric constant of the dielectric substrate, and achieve the effect of excellent dual-frequency performance and excellent bandwidth.

Active Publication Date: 2022-05-27
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Description
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Problems solved by technology

[0008] According to the traditional patch antenna theory, if the dual-band bandwidth covers channel 5 (center frequency 6489.6MHz, bandwidth 499.2MHz) and channel 9 (center frequency 7987.2MHz, bandwidth 499.2MHz), increase the height of the dielectric substrate and increase the size of the medium The dielectric constant of the substrate is an effective way, but usually the dielectric constant of the dielectric substrate in small mobile antennas has been fixed, so it is extremely challenging to meet the two indicators of dual-band bandwidth and low profile at the same time

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  • Ultra-low profile double-frequency single-layer small mobile antenna based on MGAA unit
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  • Ultra-low profile double-frequency single-layer small mobile antenna based on MGAA unit

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[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0037] In view of the problems existing in the prior art, the present invention provides an ultra-low profile dual-frequency single-layer small mobile antenna based on an MGAA unit. The present invention is described in detail below with reference to the accompanying drawings.

[0038] like figure 1 As shown, the ultra-low profile dual-frequency single-layer small mobile antenna based on the MGAA unit provided by the embodiment of the present invention includes a metal floor 1 , a dielectric substrate 2 , an MGAA unit 3 , a rectangular parasitic microstrip 4 and a 50-ohm coaxial feeder 5 .

[0039] In the embodime...

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Abstract

The invention belongs to the technical field of small mobile antennas, and discloses an MGAA unit-based ultra-low profile double-frequency single-layer small mobile antenna, which comprises a dielectric substrate, a metal floor, an MGAA unit, a rectangular parasitic microstrip and a coaxial feeder, the MGAA unit and the rectangular parasitic microstrip are attached to the upper side of the dielectric substrate, and the metal floor is attached to the lower side of the dielectric substrate; the MGAA unit is funnel-shaped and is located at the middle position of the dielectric substrate, and the center position of the MGAA unit is connected with an inner conductor of the coaxial feeder line for feeding so as to radiate low-frequency linearly polarized electromagnetic waves; the rectangular parasitic micro-strips are located on the left side and the right side of the center of the MGAA unit and used for radiating high-frequency linearly polarized waves. According to the invention, the MGAA unit is introduced into the dual-frequency design of the mobile communication equipment to solve the problems of miniaturization, high profile and multiband characteristic of the antenna, and the dual-frequency work of the antenna is realized by adding the parasitic structure.

Description

technical field [0001] The invention belongs to the technical field of small mobile antennas, in particular to an ultra-low profile dual-frequency single-layer small mobile antenna based on MGAA units. Background technique [0002] At present, the U.S. Federal Communications Commission (FCC) defines the working range of ultra-wideband (UWB) antennas as 3.1GHz to 10.6GHz. Due to the advantages of high transmission rate and low power consumption, UWB antennas have always been one of the research hotspots in the field of antennas. . The application criteria of ultra-wideband frequencies are included in IEEE802.15.4-2015 and IEEE802.15.4z, and the channels commonly used for small mobile antennas are channel 5 (center frequency 6489.6MHz, bandwidth 499.2MHz) and channel 9 (center frequency 7987.2MHz) , bandwidth 499.2MHz). [0003] Microstrip grid array antenna (MGAA) has attracted widespread attention due to its advantages of high gain, wide bandwidth, simple feeding, and easy...

Claims

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Application Information

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IPC IPC(8): H01Q5/50H01Q1/24H01Q1/38H01Q5/25
CPCH01Q5/50H01Q1/243H01Q1/38H01Q5/25Y02D30/70
Inventor 林先其郝新杰姚尧曾姜杰陈哲
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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